LightRxnPhotosynthesis

Oxidizes PQH2

________ (delivering protons to the thylakoid space) and reduces plastocyanin's copper ion:: cytochrome.

receives 2 electrons from PSII and two protons from the stroma to transport them across the thylakoid membrane

Plastoquinone

produced by chemiosmosis using a proton gradient

ATP

forms a water trap with glutamate to permit ATP to remain a product of chemiosmosis in the T state

lysine

delivers electrons to the P700 reaction center of PSI

plastocyanin

accepts electrons one at a time from the Mn+ cluster and excites electrons using absorbed photons

P680

amino acid of each "c subunit" that deprotonates to donate H+ back to the stroma, attracts forward to an a subunit arginine, and is reprotonated to spin another 340 degrees around the "merry-go-round"

aspartic acid

oxidizes PQH2 (delivering protons to the thylakoid space) and reduces plastocyanin's copper ion

cytochrome

product of the light reactions which reduces 1,3-bisphosphoglycerate in the Calvin cycle

NADPH

carries excited state electrons from PS1's P700 reactions center through ferredoxin to NADP reductase

iron sulfur cllusters

breaks bonds between H and O to produce thylakoid space H+ and load electrons to the Mn+ cluster at the base of PSII

water splitting enzyme

spinning subunit of chemiosmotic complex that moves the three alpha/beta dimerized enzyme subunits through the L, T, and O states

gamma